From the "Mother Volga" in the west to the mighty Amur in the east.

In 8th-grade geography, the study of Russia’s internal waters is a pivotal unit. Completing the contour map for this topic is not just a technical requirement; it is a vital tool for understanding the country’s hydrological "skeleton." Russia holds one of the world's largest reserves of freshwater, and visualizing these resources on a map helps students grasp the scale and distribution of this natural wealth.

The primary objective of this assignment is to memorize the locations of major river systems, lakes, and drainage basins. Russia is divided into basins belonging to three oceans—the Arctic, Pacific, and Atlantic—as well as the endorheic (internal) drainage area of the Caspian Sea. By manually tracing the paths of the Volga, the Ob, the Yenisei, and the Lena, students begin to understand how the country’s relief dictates the flow of water. For example, the northward flow of most Siberian rivers highlights the general slope of the Russian landmass toward the Arctic Ocean.

Including Lake Baikal, the deepest freshwater lake in the world, and Ladoga, the largest in Europe.

Furthermore, a "gotovaja" (completed) contour map serves as a synthesis of geographical data. It requires the identification of specific features:

Which demonstrate how humans have reshaped the environment for transport and energy.